Hyper-V error "User HAD not accepted the EULA"

These days I came across an error in Hyper-V installed on a server Windows Server 2008.A error "User not HAD accepted the EULA" appears on the console's initial Hyper-V and it was not possible to create virtual machines, errors MMC, compatibility of processors, etc ....

Solution:

Apply KB http://support.microsoft.com/?kbid=950050